constructin

Question 1

circumcircle

Answer 1

a circle that passes through all three vertices of a triangle

Question 2

circumcentre

Answer 2

the point where a triangles three perpendicular bisectors meet

Question 3

incentre

Answer 3

the point where a triangles three angle bisectors meet

Question 4

incircle

Answer 4

the largest circle that will fit inside a triangle. each of the triangles three sides is a tangent to the circle

Question 5

tangent

Answer 5

a line that touches the circle at a single point

Question 6

median

Answer 6

a midpoint of a triangle is a segment that goes from one of the triangles vertices to the midpoint of the opposite side

Question 7

centroid

Answer 7

the triangles balance point/centre of gravity. or the place where the three medians of the triangle meet

Question 8

altitude

Answer 8

a segment drawn from the vertex of a triangle to its opposite side such that it forms a right angle with the opposite side

Question 9

orthocentre

Answer 9

the point where the altitudes of the triangle intersect